Hammer Crusher for sale

What is a Hammer mill crusher?

A Hammer Crusher, also known as a Hammer Mill Crusher, is a machine that crushes material through the impact of rapidly moving hammers. Material is fed into the crushing chamber from the top. The rotor, which has hammers attached, spins at a very high speed. These hammers strike the material, breaking it apart. The material is also thrown against the inner walls and breaker plates of the crusher, which causes further reduction. The final product size is controlled by grate bars at the bottom of the machine.

Hammer crusher is a device for crushing materials in the form of impact. It can crush materials with a maximum particle size of 600-1800 mm to 25 mm or smaller.

What are Applications of Hammer Crusher?

The Industrial Hammer Mill applied in many industries because of its high reduction ratio and simple design. One of the most common applications is crushing limestone in a cement plant. The Limestone Crusher must efficiently reduce the rock to a size suitable for the next stage of cement production. The hammers face high wear, so regular inspection is essential.

Other key applications include:

• Mining: Crushing coal, gypsum, salt, and other medium-hard minerals.
• Construction: Processing construction waste and creating aggregates.
• Power Plants: Crushing coal for boilers.
• Brick Production: Crushing shale and clay for brick making.

What Types of Materials Can a Hammer Crusher Process?

A hammer crusher is suitable for materials that are soft to medium-hard and not very abrasive. If the material is too hard or abrasive, the wear on the hammers and liners will be very high, leading to frequent and costly maintenance.

Ideal materials include:

• Limestone
• Coal and Coke
• Gypsum
• Phosphate Rock
• Shale
• Salt
• Clay

What are Advantages of Hammer Crusher?

The hammer crusher is a popular choice for many reasons. Its biggest advantages are its simple design and high performance.

• High Crushing Ratio: It can take a large feed size and reduce it to a small particle size in a single pass.
• Simple Structure: It has fewer moving parts compared to other crushers, which makes it easier to maintain and operate.
• Low Investment Cost: The simple design means it is generally less expensive to purchase than a Jaw Crusher or cone crusher.
• Uniform Product Size: The grate bars ensure that the output material is a consistent, controlled size.
• Valuable Fines: The fine dust generated is not always waste. In industries like cement, these fines can be a valuable raw material.

What are the types of hammer crushers

Zoneding mainly provides 3 types of hammer crushers: hammer crushers, heavy type hammer crushers, mobile hammer crusher, etc. Here are details of these 3 types of hammer crushers.

Hammer crushers come in several designs to suit different needs. The main types you will find are:

• Reversible Hammer Crusher: In this design, the rotor can spin in both directions. This allows you to use both faces of the hammers, which doubles their lifespan before they need to be replaced or rebuilt. It helps maintain a consistent output product over time.
• Non-Reversible Hammer Crusher: This is a more basic design where the rotor only spins in one direction. It is simpler and often used for less abrasive materials where hammer wear is not as high.
• Single-Rotor vs. Double-Rotor: Most hammer crushers have a single rotor. However, for very high capacity needs or for processing sticky materials, a double-rotor design can be used to increase efficiency and prevent clogging.

What is the structure of a hammer crusher

A hammer mill crusher is mainly composed of the frame, rotor, hammer head, main shaft, and other components.

• Rotor with Hammers: This is the core component. The rotor is a heavy shaft that spins at high speed, and the hammers are attached to it. The hammers do the actual work of crushing.
• Grate Bars or Sieve: Located at the bottom of the crushing chamber, these bars control the final output size. Only material small enough to pass through the gaps can exit the crusher.
• Breaker Plates and Liners: These are hardened plates that line the inside of the crusher. Material is smashed against them after being hit by the hammers, which aids in the crushing process.
• Housing: The heavy-duty steel frame that encloses all the components and provides structural support.

How Does Hammer Crusher Work?

The working principle of a hammer crusher is straightforward and relies on impact energy.

1. Feeding: Material enters the crushing chamber from an inlet at the top.
2. Impacting: A rotor with multiple rows of hammers spins at a high velocity (typically thousands of feet per minute). As material falls into the chamber, the hammers strike it with great force.
3. Shattering: The initial impact shatters the material. The pieces are then thrown against the heavy-duty breaker plates lining the chamber, causing further size reduction.
4. Discharging: The material continues to be hit by the hammers until it is small enough to fall through the openings in the grate bars at the bottom of the mill.

The working principle of the hammer mill

The working principle of the hammer mill is to crush materials by the impact force of the high-speed rotating hammer head.

When working, the motor drives the rotor to rotate at a high speed, and the materials are evenly sent into the crushing cavity. The high-speed rotating hammer heads impact and crush the minerals. The crushed materials rush to the impact plate and grate bar at high speed. At the same time, the materials impact each other and are crushed many times.

What are Differences among a Hammer, Jaw, and Cone Crusher?

Choosing the right crusher depends on your material and goals. Here is a simple comparison:

Feature	Hammer Crusher	Jaw Crusher	Cone Crusher
Principle	Impact	Compression	Compression
Best For	Medium-hard, non-abrasive	Hard, abrasive rock	Very hard, abrasive rock
Stage	Primary or Secondary	Primary	Secondary or Tertiary
Output Shape	More cubical, more fines	Angular, less uniform	Very cubical, uniform
Wear Parts	Hammers, Liners	Jaw Plates	Mantle, Concave

A Hammer Crusher uses impact to shatter materials, while Jaw and Cone Crushers use compression to squeeze them. This makes the hammer mill better for softer rock like limestone.

What Is the Price of Hammer Crushers?

Determining the price of a hammer crusher depends entirely on the specific configuration required to meet your production goals. As a versatile machine used for primary and secondary crushing of medium-hard materials, the final cost is built around your unique application. The most significant factor influencing the price is the model size and its crushing capacity, measured in tons per hour. A compact unit for recycling or small-scale operations will have a different price point than a heavy-duty industrial hammer mill designed for high-volume quarrying or cement production.

Further customization that affects the final quotation includes the required feed opening size and the desired output particle size. The power source is another key variable, whether you need a robust electric motor for a stationary plant or a diesel engine for a mobile hammer crusher configuration. Additionally, the material specifications for critical wear parts, such as high-manganese or high-chrome steel for the hammers and liners, play a crucial role in both the initial investment and the machine’s long-term operational cost.

How Do You Improve Efficiency of Hammer Crusher?

To get the most out of your Hammer Mill Crusher, you need to focus on a few key areas.

First, pay close attention to the feed. A hammer crusher is sensitive to oversized material. You should use a screen before the crusher to remove any rock that is too large. Also, use a feeder to ensure the material enters the crusher at a steady, even rate. This prevents overload and ensures the hammers wear evenly.

Second, balance the rotor speed and grate spacing. A faster rotor produces finer particles but also increases wear. A smaller grate spacing also creates a finer product but can lower your total output. You must experiment to find the perfect balance for your material. Finally, make sure your discharge system, like a conveyor belt, is large enough to remove crushed material quickly to prevent blockages.

How to Maintain Your Hammer Crusher?

Proper maintenance is the key to a long and productive life for your hammer crusher. Hammer replacement is a major operating cost. A critical but often overlooked tip is that hammer material is not one-size-fits-all. The best material depends on what you are crushing. Manganese steel is great for impact, but a high-chromium alloy might be better for abrasive rock. At ZONEDING, we help you analyze wear patterns to select the best hammers.

Regular maintenance should include:

• Daily Inspections: Check for loose bolts, liner wear, and any unusual vibrations or noises.
• Hammer Check: Regularly inspect, rotate, or flip the hammers to ensure even wear. Consider hardfacing to extend their life.
• Bearing Lubrication: The rotor bearings handle huge loads. Follow a strict lubrication schedule with high-quality grease to prevent failure.
• Grate and Liner Inspection: Check the grate bars and liners for wear or damage and replace them before they fail.

Why Choose ZONEDING Hammer Crusher?

When you choose a ZONEDING Hammer Crusher, you are choosing over 30 years of manufacturing experience. Since 1990, we have perfected our designs to be both powerful and reliable. Our machines feature high-quality, wear-resistant components. We understand that every operation is different, so we offer customization to match the right hammer material and machine configuration to your specific needs.

Because we are a factory-direct manufacturer, we eliminate the middleman. This means you get a high-quality Stone Crusher Machine at a more competitive price. We provide full support, from designing your layout to installation and training. Our crushers are built to work hard and last long, ensuring you get the best return on your investment.

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